Using the map type

This example uses the following table and indexes:

CREATE TABLE IF NOT EXISTS cycling.cyclist_teams (
  id uuid PRIMARY KEY,
  firstname text,
  lastname text,
  teams map<int, text>
);
CREATE CUSTOM INDEX IF NOT EXISTS team_keys_idx
  ON cycling.cyclist_teams ( KEYS (teams) ) USING 'StorageAttachedIndex';
CREATE CUSTOM INDEX IF NOT EXISTS team_values_idx
  ON cycling.cyclist_teams ( VALUES (teams) ) USING 'StorageAttachedIndex';
CREATE CUSTOM INDEX IF NOT EXISTS team_entries_idx
  ON cycling.cyclist_teams ( ENTRIES (teams) ) USING 'StorageAttachedIndex';

Indexes created on the map column teams in the cyclist_career_teams table target the keys, values, and full entries of the column data.

Creating multiple SAI collection indexes with different map types on the same column requires DSE 6.8.4 or later. If you’re using DSE 6.8.3 or earlier, submit a DROP INDEX <index-name>; command before adding the next map type on the same column.

Query with KEYS from the map teams column:

SELECT firstname,lastname,teams FROM cycling.cyclist_teams 
  WHERE teams CONTAINS KEY 2015;

Results

 firstname | lastname   | teams
-----------+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Elizabeth | ARMITSTEAD | {2011: 'Team Garmin - Cervelo', 2012: 'AA Drink - Leontien.nl', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team', 2015: 'Boels:Dolmans Cycling Team'}
  Marianne |        VOS |                                                                                                                                   {2015: 'Rabobank-Liv Woman Cycling Team'}

(2 rows)

Query a value from the map teams column, noting that only the keyword CONTAINS is included:

SELECT firstname,lastname,teams FROM cycling.cyclist_teams 
  WHERE teams CONTAINS 'Team Garmin - Cervelo';

Results

 firstname | lastname   | teams
-----------+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     Jamie |    BENNETT |                                                                     {2011: 'Team Garmin - Cervelo', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team'}
 Elizabeth | ARMITSTEAD | {2011: 'Team Garmin - Cervelo', 2012: 'AA Drink - Leontien.nl', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team', 2015: 'Boels:Dolmans Cycling Team'}

(2 rows)

Query entries from the map teams column, noting the difference in the WHERE clause:

SELECT firstname,lastname,teams FROM cycling.cyclist_teams 
  WHERE teams CONTAINS 'Team Garmin - Cervelo';

Results

 firstname | lastname   | teams
-----------+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     Jamie |    BENNETT |                                                                     {2011: 'Team Garmin - Cervelo', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team'}
 Elizabeth | ARMITSTEAD | {2011: 'Team Garmin - Cervelo', 2012: 'AA Drink - Leontien.nl', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team', 2015: 'Boels:Dolmans Cycling Team'}

(2 rows)

Query for two entries from the map teams column:

SELECT firstname,lastname,teams FROM cycling.cyclist_teams
  WHERE teams[2014] = 'Boels:Dolmans Cycling Team'
    AND teams[2015] = 'Boels:Dolmans Cycling Team';

Results

 firstname | lastname   | teams
-----------+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 Elizabeth | ARMITSTEAD | {2011: 'Team Garmin - Cervelo', 2012: 'AA Drink - Leontien.nl', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team', 2015: 'Boels:Dolmans Cycling Team'}

(1 rows)

Query for either one of two entries from the map teams column:

SELECT firstname,lastname,teams FROM cycling.cyclist_teams
WHERE teams[2014] = 'Boels:Dolmans Cycling Team'
  OR teams[2015] = 'Boels:Dolmans Cycling Team';

Results

 firstname | lastname   | teams
-----------+------------+-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
     Jamie |    BENNETT |                                                                     {2011: 'Team Garmin - Cervelo', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team'}
 Elizabeth | ARMITSTEAD | {2011: 'Team Garmin - Cervelo', 2012: 'AA Drink - Leontien.nl', 2013: 'Boels:Dolmans Cycling Team', 2014: 'Boels:Dolmans Cycling Team', 2015: 'Boels:Dolmans Cycling Team'}

(2 rows)

Using the map type

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